ERRORLEVEL% will expand into a string representation of the current value of ERRORLEVEL, provided that there is not already ...

%%ERRORLEVEL%% will expand into a string representation of  the current value of ERRORLEVEL, provided that there is not already  an environment variable with the name ERRORLEVEL, in which case you  will get its value instead.  After running a program, the following  illustrates ERRORLEVEL use:        goto answer%%ERRORLEVEL%%      :answer0      echo Program had return code 0      :answer1      echo Program had return code 1    You can also using the numerical comparisons above:        IF %%ERRORLEVEL%% LEQ 1 goto okay    %%CMDCMDLINE%% will expand into the original command line passed to  CMD.EXE prior to any processing by CMD.EXE, provided that there is not  already an environment variable with the name CMDCMDLINE, in which case  you will get its value instead.    %%CMDEXTVERSION%% will expand into a string representation of the  current value of CMDEXTVERSION, provided that there is not already  an environment variable with the name CMDEXTVERSION, in which case you  will get its value instead.